On April 23, 2026, the United States Department of Justice (DOJ) and the Drug Enforcement Administration (DEA) issued an order placing FDA-approved products containing marijuana and marijuana products regulated by a state medical marijuana license in Schedule III of the Controlled Substances Act. The DEA defines Schedule III drugs as those with a moderate to low potential for physical and psychological dependence. The hearing on moving marijuana from Schedule I to Schedule III began June 29.

Workforce Health understands how important this change will be for employers and offers the following recommendations.

  • This order does not mean that Medical Review Officers (MROs) should downgrade federal THCA positive tests to negative at this time. 
  • For federally regulated drug testing, including DOT, medical marijuana use is not an acceptable medical explanation for a THC/THCA positive test. DOT/NRC safety-sensitive employees are still prohibited from using marijuana, which remains a Schedule I illicit drug.
  • For nonregulated tests, MROs are not required to report a THC/THCA positive test for which the donor claims medical marijuana use as a verified negative. Decisions should be based on the employer’s policy and directives to the MRO and state and local regulations.
  • It is important to note that currently there are no FDA-approved products containing marijuana. There are FDA-approved products that test positive for THCA, but they are synthetic and do not contain marijuana.

A final rule is expected after the hearing and should address the issues surrounding DOT/NRC testing for marijuana. Workforce Health recognizes the importance of this ruling and will share updates as they become available.

Laura Radke, MD
About the Author

Dr. Radke serves as Senior Medical Director of Workforce Health Occupational Health Services. She has a distinguished career in occupational medicine, having served in a variety of clinical and leadership roles.

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